• Journal of the Korea Society of Computer and Information
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• v.16 no.5
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• pp.173-183
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• 2011

The purpose of this study is to suggest the policy implications through the analysis on the effects of social workers' negative reactions for client violence on burnout. Especially, This study is focused on identifying the moderating effects of demographic characteristics and institutional confrontations system. This study was carried out based on survey of social workers on social welfare facilities located in G metropolitan city and J province. The major findings can be summarized as follows. First, Social workers' negative reactions toward client violence affect on burnout significantly. Second, demographic characteristics and institutional confrontations system moderate the relationship between social workers' negative reactions toward client violence and their burnout. This study suggested some implications basing on the analytical results.

• Journal of the Korea Society of Computer and Information
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• v.16 no.11
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• pp.145-152
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• 2011

The study analyzed effects of the problem-based learning utilizing cognitive algorithms in elementary mathematics education in terms of academic achievement and math attitude changes. In order to solve the research questions, a cognitive algorithm-based PBL model was derived based on N. Landa's algorithm-based instructional design theory. And the model was applied to a part of second semester math curriculum for 4th grade of an elementary school located in Seoul. The results showed that the PBL utilizing algorithms can be said to have effects on academic achievement. The PBL model is also considered to have positive effects in enhancing mathematical attitudes of the learners.

• Journal of The Korean Association of Information Education
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• v.22 no.1
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• pp.9-21
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• 2018

The purpose of this study is to examine the effects of SW education using robots on Computational Thinking, Creativity, Academic Interest and Collaborative skill. In order to achieve the purpose, SW education using robots was conducted to 88 students in 5th grade in Seoul. After collecting data, we examined mean differences using matched pair t-test. The results indicated that the SW education using robots is associated with significant improvements in Computational Thinking, Creativity and Academic Interest while Collaborative skill is not associated with significant improvement. This research investigated the effects of the SW education using robots and expanded the understanding of the SW education using robots. In addition, this study provides several implications with regard to suggesting the direction to go further of SW education using robots.

• Journal of the Korea Society of Computer and Information
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• v.25 no.2
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• pp.181-188
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• 2020

This study was conducted to identify the effects of the degree of death orientation, attitudes toward withdrawing life-sustaining treatment, and awareness of biomedical ethics on paramedic students' own biomedical ethics. The participants of this study were 228 paramedic students from a college located in D city. Data were collected from April to June 2019 through a self-report questionnaire. There was a positive correlation between awareness of biomedical ethics and attitude toward withdrawing life-sustaining treatment (r=.63, p<.001). Multiple linear regression analysis showed that the factors affecting students' awareness of biomedical ethics were religion (β=.12, p=.018) and their attitude toward withdrawal of life-sustaining treatment (β=.61, p<.001), with an explanatory power of 41.0%. Educational programs must focus on attitudes toward withdrawing life-sustaining treatment to improve paramedic students' awareness of biomedical ethics.

• Journal of the Korea Society of Computer and Information
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• v.4 no.3
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• pp.1-7
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• 1999

This study is to design and implement the synthetic courseware that covers repeating learning, individual teaching, and effective teaching-learning games by using multimedia authoring tool KAS for numerical data of computer science which is especially a little boring and difficult to understand through blackboard-based lesson for senior high school students. It also overcomes the drawbacks of the existing CAI focused on text and image by combining various kinds of media like image, animation and sound effects. Animation of numerical data in the fields of radix conversion makes it possible for learners to check the individual learning process and visual interest. So it comes to increase the effectiveness of learning. Whenever each chapter is finished. learners' understanding can be evaluated by formative test. Applicability test of the developed CAI in Eumsung Senior High School. is statistically evaluated as more effective than that of the blackboard-based lesson.

• Journal of Gifted/Talented Education
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• v.25 no.6
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• pp.971-987
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• 2015

This paper aims at analyzing SW club acitivities on the science core high school using information disclosure. Targeting 103 schools across the nation science core high schools, the factors influencing the SW Club was analyzed. And science core high school education plans, business plans and management reports were analyzed in SW club activities. It was the most influencing on the SW club in Creative-Experiential activities organization of computer courses. So computer curriculum reform is urgently needed. SW extra subject activities and funding was having a positive effect. Tuition reimbursement rates was having a negative effect. But academic achievement did not significantly affect. Therefore as many students as possible should be able to assist the SW extra subject activities. And it is required Programs and budget support that reflect the characteristics of local and school. Also, as science core high schools have STEAM education, science, mathematics and technology home economics teachers etc were leading the SW club activities by fusing the their curriculum and SW education. As these activities are consistent with the purpose of SW education, research should be more active autonomic consisting of various teachers.

• Journal of Korea Society of Industrial Information Systems
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• v.22 no.4
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• pp.131-147
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• 2017

This Study is to Comprehensively Analyze the Influence of Authentic Leadership on Turnover Intention, and Counterproductive work Behaviors through the Mediate of trust in Superiors, Organizational Silence, Placing Emphasis on the Importance and Necessity of Authentic Leadership. An Empirical Analysis has been Conducted Targeting the Employees of Medium-sized Manufacturers in Busan. According to the Results of this Empirical Analysis, the Components of Authentic Leadership is Classified into the Transparency, Morality, Balanced Way of doing things, and Self-Recognition of Superiors and all of the Above-mentioned ones are found to have a Positive(+) Significant Effect on Trust in Superiors. Secondly, Trust in the Superiors is Found to have a Negative(-) Significant Effect on the Organizational Silence(Acquiescent, Defensive) of Employees. Thirdly, Organizational Silence is to have a Positive(+) Significant Effect on the Turnover Intention and Counterproductive work Behaviors.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.41 no.9
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• pp.1001-1009
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• 2016

In LTE networks, the base station transmits control information over the physical downlink control channel (PDCCH) including scheduling grants, which are used to indicate the resources that the user equipment uses to send data to the base station. Because the size of the PDCCH message and the number of the PDCCH transmissions increase in proportion to the number of user equipments, the overhead of the PDCCH may cause serious network congestion problems in the narrowband LTE (NB-LTE) system. This paper proposes the compact PDCCH information bit allocation to reduce the size of the PDCCH message and evaluates the performance of the semi-persistent scheduling (SPS) in the NB-LTE system. The simulation results show that the SPS can significantly reduce the signaling overhead of the PDCCH and therefore increase the system utilization.

• Journal of Satellite, Information and Communications
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• v.9 no.2
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• pp.107-109
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• 2014

Dye-sensitezed solar cell(DSSC) has aroused intense interest owing to its competitive price and stabilized properties than Si based solar cells. Recently, many studies have been reported on the DSSC, especially development of Pt-free counter electrode. In this paper, graphene is chosen counter electrode for low cost material and developed its properties. To estimate the properties of counter electrode, graphene and Pt thin films have been fabricated on FTO substrates respectively, than the films are tested AFM and J-V evaluation method. A graphene of 0.1 wt% has shown current density of 11.68 mA/cm2, maximum efficiency of 4.34% which is similar with that of Pt counter electrode. It confirmed that graphene could be good material for counter electrode if its synthesizing conditions were developed.

• Journal of the Society of Disaster Information
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• v.8 no.4
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• pp.391-400
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• 2012

Recently, the construction industry commonly uses FRP as a reinforcement material because of its material advantages. FRP attached reinforcement has various advantages such as high strength, stiffness, excellent durability and construction practicability comparing to its weight. However, external attachment of FRP is water-tighted with low water permeable material, not draining water, probably causing damages on a permanent structure. The study manufactured it through pultrusion and examined GP(glass fiber panel) of which material-mechanical properties are almost same as the existing FRP but durability and attachment performance are better by stationary experiments, testing load-deflection curve, destruction types and load-deflection relation under repetitive loading test. As a result of 2,000,000 fatigue tests, it did not result in the destruction and showed excellent permanent attachment and durability as it displays significantly low compressive strain of concrete.